Aerospace Engineering > GATE 2015 > Linear Algebra
The system of equations for the variables x and y
a x+b by y=e
c x+d y=f
has a unique solution only if
A
a d-b c≠0
B
a c-b d≠0
C
a+c≠ b+d
D
a-c≠ b-d

Correct : a

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system of equations unique solution linear algebra determinant condition Aerospace Engineering GATE 2015 GATE AE 2015 Q12 matrix unique solution simultaneous equations

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